With the workflow I have, I use the eyedropper tool for a lot of text formatting and the addition of the Color Theme to the eyedropper shortcut is very inconvenient and not helpful to me. Can these two items be separated? The shortcut is now associated as a "toggle between" instead of two separate shortcuts.
It appears that there is no way to do that.
You should make a feature request here:
If it affects your workflow in a serious way, you can back down to InDesign CC which you can download from the Creative Cloud desktop application.